Based on application conditions, Hanpower designs and offers custermized screw expander ORC with high performance. For variation on heat source and heat sink, the ORC will operate automatically on design point and off-design points to generate electricity continously.

General Arrangement

The main components are twin-screw expander, generator, evaporator, condenser, oil separator, oil pump, working fluid pump, and control box. All components are assemblied to a whole structure, which is easy to transport and set up. 

Screw Expander

Based on the Hanbell's screw machinery technology, Hanpower/Hanbell develop a series of high efficiency twin screw expander as the core engine of ORC. The rotor is designed with high strength,  high efficiency, low vibration, low noise. 

● Patented 5 x 6 high efficiency rotor profile。

● Patented rotational speed sensing technology (Patent No: M413760, M413857)

● Well-designed lubrication system, promising rotor stability. 

Generator

To meet the power connection requirement on site, Hanpower provides induction generator or synchronous generator. The frequency can be 50Hz or 60Hz. The voltage can be AC220V、380~480V、3kV、6kV、10kV.

Evaporator

To consider the heat source type, content, and quality, Hanpower design and select plate type heat exchanger or shell and tube type heat exchanger as evaporator.

Condenser

We offer different type condensers, (1)water cooled condenser; (2)Air cooled condenser; (3)Evaporated condenser. Generally, water cooled is suggested due to following benefits.

Oil Separator

Oil separator is designed to separate oil and superheated working fluid, to prevent the oil circulate to evaporator and condenser.

Working Fluid Pump

High efficiency, multi-stage centrifugul pump are selected to pump the working fluid into evaporator in ORC system.

Control System

In ORC's control system, PLC is used to control all conditions and reacted automatically with variable heat source/ heat sink conditions.  All conditions parameters monitored by PLC can be transferred to user's DCS, SCADA or control center by communication.  

Hanpower offers screw expander ORC of 10kW~300kW，including (1)Hermetic type + induction generator，and (2)Open type + synchronous generator.

 Product Series 

●100%  designed and made by Hanpower, with high quality and reasonable price.

●Seriese of 10kW ~300kW custermized ORC.

●Wide operational range of 20%~130%.

●Long life time of 20 years, low maintainance cost.

Hermetic Screw Expander-Induction Generator Set

The screw expander rotor and induction generator rotor are designed as the same shaft, which means there is no coupling and no vibration problem. The hermetic structure implies no seal is needed, which means there is no risk of working fluid leaking. Moreover, the low temperature working fluid after expansion flow through the induction generator and cooling the generator without extra power. 

●No seal, no working fluid leaking.

●No coupling, no vibration.

●No cooling fan, no extra power wasted.

Open Screw Expander-Synchronous Generator Set

For special application, for example, renewable energy, open type ORC is needed. Hanpower also offer open type screw expander-synchronous generator set. A coupling is needed between the screw expander and the synchronous generator. The art of aligement is important. Besides, a seal is needed to prevent leaking of working fluid and a fan should be installed to cooling the generator.  

Automatic Intelligent Control System

In ORC's control system, PLC is used to control all conditions and reacted automatically with variable heat source/ heat sink conditions.  

●Total automatic control, realize install and forget.

●Following the variations of heat conditions, maximize power output with wide operation range of 20%~130%.

●Supply remote monitoring through communication.